3609573673 has 4 divisors (see below), whose sum is σ = 3627896580. Its totient is φ = 3591250768.

The previous prime is 3609573647. The next prime is 3609573689. The reversal of 3609573673 is 3763759063.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3007754649 + 601819024 = 54843^2 + 24532^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3609573673 is a prime.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3609573973) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9161158 + ... + 9161551.

It is an arithmetic number, because the mean of its divisors is an integer number (906974145).

Almost surely, 2^3609573673 is an apocalyptic number.

It is an amenable number.

3609573673 is a deficient number, since it is larger than the sum of its proper divisors (18322907).

3609573673 is a wasteful number, since it uses less digits than its factorization.

3609573673 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18322906.

The product of its (nonzero) digits is 2143260, while the sum is 49.

The square root of 3609573673 is about 60079.7276375318. The cubic root of 3609573673 is about 1533.9762540754.

The spelling of 3609573673 in words is "three billion, six hundred nine million, five hundred seventy-three thousand, six hundred seventy-three".